This study investigated the rainfall patterns, spatial variability, surface runoff generation and dam requirements in the southwestern region of Saudi Arabia. The region was divided into four areas Asir, Jazan, Al-Baha and the Red Sea Coast. Surface runoff was estimated for eight scenarios considering the runoff coefficients of 0.05–0.70, resulting in 203–2,835 million cubic meters (MCM) of runoff per year in this region. The runoff in the Asir, Jazan, Al-Baha and the Red Sea Coast were estimated to be in the ranges of 88–1,230, 53–738, 32–443 and 30–425 MCM per year, respectively. The capacities of the existing dams in Asir, Jazan and Al-Baha are approximately 373, 194 and 31 MCM, respectively, while the coast does not have any dam. A significant fraction of runoff is likely to be lost in each scenario of assessment. Water resources may be augmented through construction of new dams and/or wells in appropriate locations. However, better understanding is advisable on locations, water availability, surface evaporation in wadies and reservoirs, accumulation of solids in dam/reservoirs, hydraulic conductivity, economic burdens and national policy.
- IWA Publishing
- Augmentation of surface water sources from spatially distributed ...
Surface/bathing water monitoring (Denmark) - Case Study
In order to find the possible fecal sources to the sporadic high concentrations of bacteria, the municipality of Hjørring (DK) has set up a BACTcontrol in the ditch to monitor the E.coli levels.For this purpose the BACTcontrol is built into a movable trailer and powered by solar panels. This allows the BACTcontrol to run continuously (6 samples per day) for 7-14 days depending on the sunlight concentration.
TORNADO Surface Aerators Reduce Odors at Wastewater Reservoir - Case Study
PROJECT DETAILS LOCATION Chicago, Illinois, U.S. CUSTOMER U.S. Army Corps of Engineers, for the Chicago O’Hare Reservoir SOLUTION Aeration of wastewater treatment reservoir TECHNOLOGIES 100-horsepower TORNADO® Surface Self-Aspirating Aerators The Chicago area’s wastewater authority wanted to add an aeration system to its three storm and wastewater reservoirs to avoid stagnant water. Reservoirs often held wastewater for a significant amount of time before it could be processed by the treatment...
PeCOD® Case Study #13 Airport De-Icing
De-icing of aircrafts and airfield pavement is important to ensure the safety of passengers and cargo operators. These operations can have negative environmental impacts, due to the presence of ethylene glycol and propylene glycol, which contribute to high levels of BOD in surface water. Regulations are in place to ensure that waste from de-icing operations are properly collected and treated. The PeCOD® method for COD analysis is ideally suited for monitoring discharges from airport de-icing operations as...
Mapping Bedrock Surfaces Near Lake Travis, Texas - Case Study
In May 2014 and May 2015, AGI conducted a hydrogeology workshop focused on training students how to use a resistivity meter for groundwater exploration at Lake Travis near Austin, Texas. Why groundwater exploration? This workshop’s purpose was important: As water—especially groundwater—becomes more and more scarce (and thus, valuable) knowing exactly where and how to find it will become more crucial. By training students how to use our resistivity meter for groundwater exploration, we’re...
Screening of organic pollutants in urban wastewater treatment plants and corresponding receiving ...
There is a lack of knowledge in environmental pollution of the anthropogenic contaminants in wastewater and surface water. Several organic compounds merit special attention, because of their potential risk to the aquatic environment. Therefore, gas chromatography–mass spectrometry-based screening analyses were performed in order to identify anthropogenic organic contaminants and to reveal information on the structural diversity of individual compounds and to characterize their environmental behavior. Wastewater...